97 speedster engine failure

[alphamilmale]

Hi I just purchased a 97 speedster. The man I bought it from said it was running a little funny and didnt have an reason why. So I bought it and took it to a marina and they ran a compression check, the results were fine. The marina never had it out on the water though. The next week it rained alot and even though I had a cover on it, the boat still took on some water. About a 1/4 of the engine compartment took on water. I turned the pump on an drained the water, turned on the engines for two to three minutes hopping to flush any moisture out the back. Later that week put the boat on the water. Ran great for two or three minutes, then had one engine failure. Gently got the boat back to shore and out of the water because when I tried to start it. It would just click. Now it acts like it wants to turn over really slow. I took it to a marina that doesnt work on jet boats,they said one cylinder only had 50 psi while the other had 150. There best guess was I had a froze motor but they didnt know. Does this sound like anything anyone ever heard of???????? Any advise would be very helpful thank you.

 

[seadoosnipe]

Lubricate....

You need to pull the plugs on that engine. Spray a good helping of PB blaster in it to keep it lubed up. When a motor has ingested water, rust is your worse enemy. There is no way of getting a true compression reading while it's in this condition.

The first thing you'll learn about me, I don't trust marine shops!....I will once again say, I know there are several that do good work but I think there is a bigger majority looking for money in their pocket.......since you brought it to them, told them what happened, my idea is they felt you out and said, "hey, I got one that isn't really a mechanice, lets go fishing!".............sorry, that's just how I see some of these mechanics.

Do like I said, get the plugs out and spray some lube in the spark plug holes. If the battery has a good charge in it, spin the motor over, with the plugs out and put a rag over the holes to keep from blowing stuff out everywhere. Then, you'll need to go down to an auto parts store (autozone) and buy you an in-expensive compression tester and do the test for yourself.......
It's simple to do and every boat owner needs to know how to do this.

Re-post the condition of the motor. Does it spin over with the starter? If not, remove the gray shaft guard from the back of the motor and spin it counterclockwise by hand. ......you have got to keep the motor free from rust and keep it moving. Anything after that is repairable. Then, we can get a decent copression test......

 

[alphamilmale]

Thank you

Awwwww. well my worst fear came true. thank for your advise, I did stay away from the marine shops. I pulled the motor apart myself and found a blown motor. one of my pistons were shot and grinded down. there was metal all in the motor. ive been thinking of rebuilding but dont know if my cylinder sleeve is scorne. Im thinking it might be a good idea to just put in a rebuilt motor from sbt for 800 dollars. What do you think????? Do you have any other suggestions or ideas what I could do??????

 

[timmyboy76]

Chances are, a bore job be look'n around 80-100 buks, per cylinder, then set of pistons and gasket kit. Ballpark say $400 total, and thats with you install'n everything, not knocking you, but you'll have NO warranty, being a 97", couple hundred buks more, you have brand new, WITH 2yr warr.???